Contents. General principles... 2 By Surgery... 3 ERPOC 3. Laproscopy 3. Tension-Free Vaginal Tape 3. Abdominal Hysterectomy 4. Vaginal Hysterectomy 4

Transcription

1 Contents By A Hollingworth & J Fernando General principles... 2 By Surgery... 3 ERPOC 3 Laproscopy 3 Tension-Free Vaginal Tape 3 Abdominal Hysterectomy 4 Vaginal Hysterectomy 4 Ectopic Pregnancy 5 Cancer Surgery 5 Gynae - 1

2 General principles - many patients are fit and healthy and can be done as day cases - anxiety an issue - preoperative diclofenac and ranitidine - consent for rectal medications - PONV cares - avoid N2O, prophylactic anti-emetics - pelvic surgery associated with VTE -> prophylaxis important - prophylactic antibiotics - OCP: Combined pill s risk of VTE x3-4 (POP does not change risk) no need to stop for minor procedures consider stopping 4 wks prior to elective major surgery must advise alternative forms of contraception - watch for vagal stimulation (cervical dilation, peritoneal stimulation, traction of uterus) -> have atropine drawn up - stimulation -> laryngospasm (get deep) - patient moved often (head down, down table, lithotomy) - watch for pressure areas and nerve compression - hypothermia care - SV with facemask often acceptable (or LMA) - simple analgesics - anti-emetics - monitor for perforation - small tears may be treated with Abx larger tears laproscopy Gynae - 2

3 ERPOC - incomplete miscarriage (6-12wks) - Suction TOP (up to 12wks) - STOP - surgical termination via D&C >12wks - MTOP - >16wks prostaglandin +/- ERPOC - quantify preoperative blood loss (vitals and Hb) - IV access - supine - LMA or ETT - avoid high conc of volatile uterine relaxation use prop/opioid to deepen - short procedure - oxytocin 5IU IV - oral analgesia - anti-emetic Laproscopy By Surgery = intra-abdominal examination of gynaecological organs through rigid scope - usually fit, young adults - consent for suppositories - preoperative NSAIDS - supine - lithotomy - head down - short acting NDNMBD (mivacurium 0.15mg/kg 15min of block) - proseal LMA or ETT - short acting opioid (fentanil) - ask surgeon to use LA - watch for abdominal organ perforation - watch for gas embolism from CO2 - morphine may be required - shoulder tip pain common -> try and expel much of the CO2 at the end of the procedure Tension-Free Vaginal Tape = tape insertion for stress incontinence Gynae - 3

4 - may have co-morbidities - may be large - lithotomy - pain minimal - GA (LMA) or spinal or local + sedation (discuss with surgeon) many would prefer ability for pt to cough to adjust tape avoiding Ga helpful - NSAIDS - daycase usually - opioids only rarely required Abdominal Hysterectomy = removal of uterus through abdominal incision (may include ovaries) - if performing pelvic lymph node dissection then may take much longer A line, careful fluids - may have menorrhagia or PMB -> check Hb, G+H - check U+E -> may have ureteric obstruction - anxiety - PONV common - DVT prophylaxis - supine - head down - GA (ETT) + IPPV + NDNMB + spinal & opioids - PONV cares - Pfannenstiel incision (bikini line) -> bilateral ilio-inguinal blocks, TAP blocks or LA infiltration - Midline incision -> epidural or RSC s - warm - simple analgesia + PCA Vaginal Hysterectomy - degree of prolapse determines difficulty of surgery - patients usually older and maybe frail - may be performed with initial laproscopy to assist removal of ovaries/tube removal through vagina - GA (LMA) or spinal - SV - IV morphine - careful with positioning (OA and nerve injury) - may do a laparoscopic assisted approach -> to also remove ovaries and tubes - opioids, NSAIDS and LA Gynae - 4

5 Ectopic Pregnancy = laparotomy/laparoscopy to stop bleeding from ruptured tubal pregnancy - presentation variable; haemodynamically normal -> severe hypovolaemic shock - large bore IV access - cross-match & FBC, coag screen on arrival - if patient unstable get another anaesthetist to help - RSI with pt draped & surgeon scrubbed & ready to operate - ketamine good agent - IV resuscitation - warm - correct coagulopathy - PCA Cancer Surgery - incl cervical, endometrial, ovarian - surgery range from local removal, to en bloc rescetion of all pelvic organs abdominal organs & peritoneum Preoperative - standard assessment - quantify distal cancer spread - ovarian Ca: 90% of stage III-IV cancer will have ascites?if rapidly growing whether should be drained preop - Paraneoplastic syndrome: Ovarian: - cerebellar degeneration - nephritic syndrome - retinopathy - cauda equina syndrome Uterine: - hypercalcaemia - retinopathy - periph neuropathy - encephalitis - myelitis - dermatomyositis - high VTE risk - start LMWH pre-op - obesity = RF Perioperative Induction - GA - spinal only for radical vulvectomies Maintenance - VTE care: SCDs, LMWH - cell salvage: not historically used due to malignancy risk Gynae - 5

6 some trials says safe in Ca work - warming End of case - TAP block vs wound/rsc catheters Postop - PCA - PONV cares - delirium: post op 17.5%: RFs: - >60 - albumin - ed co-morbidities - blood transfusion - immobility - chronic pain 5-30%: mostly surgical factors poorly controlled pre or post op pain is a contributing factor Special Points - DVT risk of 7-45% post op gynae Ca via various mechanisms: - Tissue factor release from tumour cells procoagulant - venous stasis from pelvic tumour compressing vessels - immobilisation RFs: - ovarian clear cell risk - CVL UL thrombosis 27-66% - chemo & radio x2-6 risk - use of EPO for Hb Gynae - 6